Regarding character name restrictions.

[Dburwebby]

So I couldn't find an answer on this anywhere which is why I'm asking here, hoping someone might know. So I keep trying to make a character with the name that is also my Square Enix account name. It won't let me use it, and there's no one in that server or any server with that name, nor is it a vulgar word in any language. Are you not allowed to use your account name as a character name? If so, then I kind of find this stupid because I would have used a different account name so I could use this as a character name.